Decoding algorithm with Fast Hadamard Transform for channel quality indication (CQI) in 3GPP-LTE

Author

Li, Minliang ; Han, Dahai ; Ma, Songwei

Author_Institution

Key Lab. of Inf. Photonics & Opt. Commun., Beijing Univ. of Posts & Telecommun., Beijing, China

Volume

9

fYear

2010

fDate

22-24 Oct. 2010

Abstract

Channel quality indication (CQI) report is an important element of LTE and has significant impact on the system performance. The encoding method for CQI in 3GPP-LTE is Reed-Muller (RM) code and the transmission quality of CQI can be improved by channel coding with RM code. On the receiver, the contradiction between low latency which is one of goals of LTE and reliability of communication system can be eased up by fast decoding algorithms, among which Fast Hadamard Transform (FHT) is described in this paper. Performance analysis as well as computer simulation of the whole process of CQI coding is also presented.

Keywords

3G mobile communication; Hadamard transforms; Reed-Muller codes; decoding; radio receivers; 3GPP-LTE; Reed-Muller code; channel quality indication; decoding algorithm; fast Hadamard transform; receiver; transmission quality; Computational modeling; Information theory; 3GPP-LTE; CQI; FHT; Reed-Muller;

fLanguage

English

Publisher

ieee

Conference_Titel

Computer Application and System Modeling (ICCASM), 2010 International Conference on

Conference_Location

Taiyuan

Print_ISBN

978-1-4244-7235-2

Electronic_ISBN

978-1-4244-7237-6

Type

conf

DOI

10.1109/ICCASM.2010.5622951

Filename

5622951